module D (clock,reset,d,q); input clock,reset,d; output q; reg q; always @(posedge clock) begin if(reset==1'b0) q<=1'b0; else q<=d; end endmodule为以上代码编写测试激励
时间: 2024-01-24 09:04:11 浏览: 75
Clock_Dividers_Made_Easy.zip_made_verilog clock
以下是一个简单的测试激励,可以对D触发器进行基本的功能测试:
```
module test_D;
reg clock, reset, d;
wire q;
D dut(clock, reset, d, q);
initial begin
// test case 1: reset
clock = 0; reset = 1; d = 0;
#10 reset = 0;
#10 reset = 1;
#10 reset = 0;
// test case 2: set
d = 1;
#10 d = 0;
#10 d = 1;
#10 d = 0;
// test case 3: toggle
d = 1;
#10 d = 0;
#10 d = 1;
#10 d = 0;
#10 d = 1;
// test case 4: clock edge
d = 0;
#10 clock = 1;
#10 clock = 0;
#10 clock = 1;
#10 clock = 0;
// test case 5: random sequence
reset = 1; clock = 0;
#10 reset = 0;
#10 d = 1;
#10 clock = 1;
#10 d = 0;
#10 clock = 0;
#10 d = 1;
#10 clock = 1;
#10 d = 0;
#10 clock = 0;
#10 d = 1;
#10 clock = 1;
#10 reset = 1;
#10 reset = 0;
end
endmodule
```
这个测试激励会按照不同的测试用例,改变输入信号的值,观察输出信号的变化,并在仿真波形中验证D触发器的功能是否正确。需要注意的是,这个测试激励只是一个简单的示例,如果需要更全面的测试,需要编写更多的测试用例。
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